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    Rateless and rated coding using spinal codes
    13.
    发明授权
    Rateless and rated coding using spinal codes 有权
    使用脊髓代码的无痛和额定编码

    公开(公告)号：US08724715B2

    公开(公告)日：2014-05-13

    申请号：US13399436

    申请日：2012-02-17

    Applicant: Jonathan Perry ,  Devavrat Shah ,  Hari Balakrishnan

    Inventor： Jonathan Perry ,  Devavrat Shah ,  Hari Balakrishnan

    IPC: H04L27/00

    CPC classification number: H04B1/10 ,  H04B15/00 ,  H04L1/0007 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/005 ,  H04L1/0054 ,  H04L5/16 ,  H04L27/34

    Abstract: In one aspect, a wireless system includes an encoder configured to encode data using a spinal code which uses a function over the message bits to directly produce a sequence of constellation symbols for transmission. The wireless system also includes a decoder configured to decode the spinal code. The function may be at least one of a non-linear function and a hash function.

    Abstract translation: 一方面，一种无线系统包括：编码器，被配置为使用脊髓代码对数据进行编码，所述脊髓编码使用消息比特的功能来直接产生用于传输的星座符号序列。 无线系统还包括被配置为解码脊髓代码的解码器。 该函数可以是非线性函数和散列函数中的至少一个。

    METHODS AND APPARATUS FOR SECURING A DATABASE
    14.
    发明申请
    METHODS AND APPARATUS FOR SECURING A DATABASE 有权
    用于保护数据库的方法和装置

    公开(公告)号：US20130191650A1

    公开(公告)日：2013-07-25

    申请号：US13357988

    申请日：2012-01-25

    Applicant: Hari Balakrishnan ,  Raluca Ada Popa ,  Nickolai Zeldovich

    Inventor： Hari Balakrishnan ,  Raluca Ada Popa ,  Nickolai Zeldovich

    IPC: G06F21/24

    CPC classification number: G06F21/6227 ,  G06F2221/2107 ,  H04L9/008

    Abstract: Methods and apparatus for a system to maintain confidentiality of data in a database management system by selecting encryption schemes for data items, storing encrypted data in databases, transforming SQL queries to run over encrypted data, and executing queries over encrypted data on the database server.

    Abstract translation: 通过选择用于数据项的加密方案，将加密数据存储在数据库中，将SQL查询转换为加密数据运行，以及通过数据库服务器上的加密数据执行查询，系统维护数据库管理系统中数据机密性的方法和装置。

    Partial packet recovery for wireless networks
    15.
    发明授权
    Partial packet recovery for wireless networks 有权
    无线网络的部分数据包恢复

    公开(公告)号：US08386892B1

    公开(公告)日：2013-02-26

    申请号：US11934991

    申请日：2007-11-05

    Applicant: Kyle Jamieson ,  Hari Balakrishnan

    Inventor： Kyle Jamieson ,  Hari Balakrishnan

    IPC: H03M13/00 ,  H03M13/45

    CPC classification number: H03M13/6527 ,  H03M13/23 ,  H03M13/373 ,  H03M13/3738 ,  H03M13/3905 ,  H03M13/4138 ,  H03M13/6306

    Abstract: A method, apparatus and computer program product for providing partial packet recovery (PPR) for wireless networks is presented. PPR incorporates an expanded physical layer (PHY) interface that provides PHY-independent hints to higher layers about the PHY's confidence in each bit it decodes, and a technique to recover data even when a packet preamble is corrupted and not decodable at the receiver. Also described is an asynchronous link-layer automatic repeat request (ARQ) protocol built on PPR that allows a receiver to compactly encode a request for retransmission of only those bits in a packet that are likely in error.

    Abstract translation: 提出了一种用于为无线网络提供部分包恢复（PPR）的方法，装置和计算机程序产品。 PPR集成了一个扩展的物理层（PHY）接口，它向PHY提供与PHY相关的每一位的置信度的PHY无关的提示，即使在数据包前导码被破坏并且在接收机处不可解码的情况下，恢复数据的技术也是如此。 还描述了一种构建在PPR上的异步链路层自动重传请求（ARQ）协议，其允许接收机对仅可能出错的分组中那些比特的重传请求进行压缩编码。

    Remote monitoring and control of equipment over computer networks using a single web interfacing chip
    16.
    发明授权
    Remote monitoring and control of equipment over computer networks using a single web interfacing chip 有权
    使用单个Web接口芯片远程监控和控制计算机网络上的设备

    公开(公告)号：US06446192B1

    公开(公告)日：2002-09-03

    申请号：US09326105

    申请日：1999-06-04

    Applicant: Subram Narasimhan ,  Curtis Allred ,  Mark Stemm ,  Hari Balakrishnan

    Inventor： Subram Narasimhan ,  Curtis Allred ,  Mark Stemm ,  Hari Balakrishnan

    IPC: G06F954

    CPC classification number: H04L29/06 ,  H04L67/12 ,  H04L67/34 ,  H04L69/329

    Abstract: A single integrated circuit chip interfaces device control circuitry of a device to a client machine via a computer network. The chip comprises an internal data bus; a central processing unit connected to the internal data bus; an internal memory connected to the internal data bus; a device interface connected to the internal data bus, wherein the device interface comprises circuit blocks for communicating digital information between the integrated circuit and the device control circuitry; and a network interface connected to the internal data bus, wherein the network interface comprises circuit blocks for communicating digital information between the integrated circuit and the computer network. The internal memory comprises instructions for implementing complete internet protocol functionality on the network; translating information between network protocol formats and a format of the device; transferring information between the network and the device control circuitry; and sending customized software to the client machine over the network, wherein the software is executable on the client machine, and wherein the software enables the client machine to generate device control signals and to receive device status information. The single integrated circuit chip provides inexpensive, compact, powerful, and versatile interfacing of a large variety of devices to high performance computer networks.

    Abstract translation: 单个集成电路芯片通过计算机网络将设备的设备控制电路接口连接到客户端机器。 该芯片包括内部数据总线; 连接到内部数据总线的中央处理单元; 连接到内部数据总线的内部存储器; 连接到所述内部数据总线的设备接口，其中所述设备接口包括用于在所述集成电路和所述设备控制电路之间传送数字信息的电路块; 以及连接到内部数据总线的网络接口，其中所述网络接口包括用于在所述集成电路和所述计算机网络之间传送数字信息的电路块。 内部存储器包括用于在网络上实现完整的因特网协议功能的指令; 在网络协议格式和设备的格式之间转换信息; 在网络和设备控制电路之间传送信息; 以及通过网络向客户机发送定制软件，其中所述软件可在所述客户端机器上执行，并且其中所述软件使所述客户端机器能够生成设备控制信号并接收设备状态信息。 单个集成电路芯片为各种高性能计算机网络提供了便宜，紧凑，功能强大且通用的各种设备接口。

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